IN2015DN01917A - - Google Patents

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Publication number
IN2015DN01917A
IN2015DN01917A IN1917DEN2015A IN2015DN01917A IN 2015DN01917 A IN2015DN01917 A IN 2015DN01917A IN 1917DEN2015 A IN1917DEN2015 A IN 1917DEN2015A IN 2015DN01917 A IN2015DN01917 A IN 2015DN01917A
Authority
IN
India
Prior art keywords
coal
heat
modified
pulverized coal
self heating
Prior art date
Application number
Inventor
Masakazu Sakaguchi
Tsutomu Hamada
Takeshi Okada
Setsuo Omoto
Keiichi Nakagawa
Original Assignee
Mitsubishi Heavy Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Publication of IN2015DN01917A publication Critical patent/IN2015DN01917A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange

Abstract

To reduce operation costs of a blast furnace and reduce pig iron production costs. A pulverized coal injection device (5A) is configured so as to inject pulverized coal together with heated and compressed injection air from a tuyere (8) in a blast furnace main body (2) and uses as the raw material for the pulverized coal modified coal that has been modified from low quality coal and has self heating properties. A heat exchanger (25a) is provided as a heat transfer means that transfers heat from the self heating action of this modified coal to sites that require heat. This heat exchanger (25a) exchanges heat between the heat from the self heating action of the modified coal that passes through a pulverized coal supply pipe (22) and for example air injected into an injection air feed device (23) and heats the injected air. The pulverized coal injection device may also comprise a deactivation means that deactivates the modified coal to a level at which a prescribed amount of self heating action remains.
IN1917DEN2015 2012-09-20 2013-09-10 IN2015DN01917A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012207274A JP6012360B2 (en) 2012-09-20 2012-09-20 Pulverized coal blowing device, blast furnace equipment equipped with the same, and pulverized coal supply method
PCT/JP2013/074404 WO2014045946A1 (en) 2012-09-20 2013-09-10 Pulverized coal injection device, blast furnace comprising same, and pulverized coal supply method

Publications (1)

Publication Number Publication Date
IN2015DN01917A true IN2015DN01917A (en) 2015-08-07

Family

ID=50341260

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1917DEN2015 IN2015DN01917A (en) 2012-09-20 2013-09-10

Country Status (7)

Country Link
US (1) US20150225804A1 (en)
JP (1) JP6012360B2 (en)
KR (1) KR101648686B1 (en)
CN (1) CN104641002A (en)
DE (1) DE112013004589T5 (en)
IN (1) IN2015DN01917A (en)
WO (1) WO2014045946A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9556497B2 (en) * 2012-01-18 2017-01-31 Mitsubishi Heavy Industries, Ltd. Blast furnace
JP6551471B2 (en) * 2016-07-29 2019-07-31 Ｊｆｅスチール株式会社 Blast furnace operation method
JP6551470B2 (en) * 2016-07-29 2019-07-31 Ｊｆｅスチール株式会社 Blast furnace operation method
CN107119160A (en) * 2017-07-10 2017-09-01 中冶华天南京工程技术有限公司 A kind of blast-furnace coal powder injection method preheated with compressed gas and system
CN107763651A (en) * 2017-09-14 2018-03-06 云南中翼鼎东能源科技开发有限公司 The method and its coal supply system of a kind of boiler coal feeding
CN112725556B (en) * 2021-01-19 2022-06-28 付光明 Method and device for heating pulverized coal by using blast furnace molten iron dedusting circulating hot flue gas

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE630649A (en) * 1962-04-05
US3240587A (en) * 1962-12-21 1966-03-15 Allied Chem Method for injecting particulate coal into a blast furnace
US4160663A (en) * 1978-02-21 1979-07-10 Jack Hsieh Method for the direct reduction of iron ore
US4528069A (en) * 1983-04-11 1985-07-09 Inland Steel Company Solvent pretreatment of coal to improve coke strength
JPH11310785A (en) * 1998-04-30 1999-11-09 Mitsubishi Heavy Ind Ltd Method and apparatus for coal improvement
CN101413038B (en) * 2008-12-04 2011-03-23 沈阳东方钢铁有限公司 Coal powder pure oxygen blast furnace ironmaking process and equipment thereof
JP5759097B2 (en) * 2009-09-07 2015-08-05 宇部興産株式会社 Solid fuel
JP5521494B2 (en) * 2009-11-04 2014-06-11 新日鐵住金株式会社 Method for reforming coal, method for producing coke and sintered ore, and method for operating blast furnace
CN102337141B (en) * 2010-07-16 2013-11-20 张文辉 Method for preparation of fuel for blast furnace injection and fuel oil for transport
CN101899542A (en) * 2010-08-05 2010-12-01 中冶南方工程技术有限公司 Coal injection system of blast furnace
JP5541195B2 (en) 2011-02-24 2014-07-09 Ｊｆｅスチール株式会社 Method for measuring particle size distribution of pulverized coal

Also Published As

Publication number Publication date
DE112013004589T5 (en) 2015-06-11
CN104641002A (en) 2015-05-20
WO2014045946A1 (en) 2014-03-27
KR20150040361A (en) 2015-04-14
WO2014045946A8 (en) 2015-03-12
JP6012360B2 (en) 2016-10-25
US20150225804A1 (en) 2015-08-13
JP2014062292A (en) 2014-04-10
KR101648686B1 (en) 2016-08-16

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